The US Embassy in Sri Lanka has said the FBI is on the ground in the country to help assist its investigation into the Easter suicide bombings that killed 359 people, AP reports. The embassy said it was part of the support extended by President Trump. Police spokesman Ruwan Gunasekara said on Wednesday morning that 18 suspects were arrested overnight, raising the total detained to 58. The country’s prime minister warned on Tuesday that several suspects armed with explosives were still at large.